Foreign Investors Group

We want to open an LLP in India, which will act as a sister concern of a Foreign company based in Canada. For this, we want to appoint 2 Directors in the India based company.
So, please explain me the basic requirements. Directors have applied for DIN (Director Identification number), Digital Signature, etc.
My Questions:-
1) For an LLP company based in India, and funded from Canada. Are there any rules or formalities that the main company needs to do? Any Tax rebates from India Government, if the basic line of Business is IT?
2) Is it important to hire a physical place or any virtual address is allowed?
3) My idea about the entire concept is very limited, so please advice me with more ideas that you all think is going to help us.
Info:-
* Main area of Business of the LLP will be providing services and support for its Mother company based in Canada, and remuneration received from Canada, will act as Salary of Directors, employees and rest as investment in the company for infrastructure and set up.
* All work done will be related to IT and Web Services.
* Place will be Kolkata, India
* Number of Directors – 2 (Both Indian) and 2 more employees as Working Partner (Both Indian)
Does the funding (Mother) company needs to appoint a Director from their end too? (Canadian)
Awaiting your replies. Please help.
Thanks